Distilling apparatus.



A. G. WATERHOUSE. DISTILLING APPARATUS. APPLICATION FILED NOV. 9, 1909.

' Patented Apr. 18, 1911.-

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Patented Apr. is, ie i;

I Original application fil'ed- August 24, 1908, Serial No. 4 453,995. Divided and this application filed r v November 8, 1909. Serial No. 526,718.

To all whom. it may concern:

Be itk'nown that I, ADDISON G. fairne- HOUSE, a citizen of the United States, and resident of New York city, borough of the ronx, in the county of New York and State of New York, have invented certain new and useful Improvements in Distilling Apparatus, of which the following. is a speci- This application is a division of distilling alcohols and other volatile liquids, filed August. 24, 1908, Serial No. 449,995, new Patent 939,361, granted Nov. .9, 1909.

The object of this invention is to control the flow of liquid to be distilled'or evaporated by the temperature of the liquid being treated, and to conserve the heat required for distillation, whereby large volumes of liquid containing a small percentage of al cohol or other volatile fluid, to be distilled can be economically employed, my invention being equally applicable to liquids more rich in alcohol or volatile properties.

- In carrying, out my invention I provide a .by the outfiowing discharge liquid as permitted to flow from the boiler by said thermany-controlled means governed by the temperature of the liquid in the boiler will impart heat to the fresh liquid flowing through the heat exchange to the boiler, whereby the heat used in distillation is con served.

My invention also comprises novel details of improvementand combinations of parts that will be more fully hereinafter set forth and then pointed out in the clapns.

- Reference is to be had to the accompany ing drawing forming part hereof, which is a partly sectional dlagrammatid view 1llusgrating means for carrying cu t my 1nvenl of my ap l pllcatiou for patent for improvements in art The boiler D is a closed vessel, under which fire can be applied and into, which boiler liquid can be automatically admitted so that its surface can be maintained at some level is maintained by means of the float D which controls the inlet valve 1).

iVhile the temperature of the liquid is raised and remains ata substantially predetermined degree, saichhquid 1s automativcally allowed to flow from the boiler causing fresh liquid to flow in but such flow is regulated to accord with the effect of the heat -applied to the liquid in the boiler, and such flow .is made dependent upon such heat being maintained at substantially a fixed or predetermined. temperature. This is efi'ected by the thermal valve N,'comprising a valve N having av stem N connected with a fieX- ible diaphragm N above which is a closed space N, from which extends a tube or fecler N into boiler D. Valve N" is kept normally closed, as by the spring N and is piped to the boiler D. Said tube or feeler N is charged with alcohol or othervolatile fluid from which vapor will be generated, as theheat, when up to a predetermined temperature, is transmitted to it from the liquid in the boiler D, and the vapor in the fceler will then exert a pressure upon the diaphragm N. in away adapted for actuating valve N ,only so long as the required ten'iperature in the boiler is maintained, and during which timethc liquid. can How in and out or the boiler at a rate corresponding to the opening of the valve by the heat of such liquid while in the boiler, and whereby as the tom perature of the liquid in the boiler is reduced by reason of the inflowiug supply liquid the temperature of the tube or change through which the 'inflowing fresh liquid and the outfiowing discharge liquid pass in thermal relation. The heat exchange shown comprises a vessel consisting of an outer shell B having separate chambers B, B connected by tubes B through which the supply liquid enters from pipe Aand passes upwardly through tubesB on the way to boiler D through pipe 0 and valve D, while the liquid which flows from boilerd) enters shell B through pipe J from valve N and then flows within 'shell Bv outside of tubes B thereby bringing the cold infiowing liquid in thermal contact with the hot exhaust liquid, so that the same heat is returned and used over and over again, or so that the .cold liquid enters the boiler hot and the hot liquid from the boiler leaves the heat exchange through discharge pipe L in a'relatively cold state. Vapors from the boiler may be'carried away through pipe E and condensed in any well known or desired manner.

It will be understood that full advantage can be taken of the state of the art in determining the practical forms which may be adopted in the construction of the apparatus utilized for carrying out my invention.

Having now described my invention what I claim is 1. The combination of. aboiler having supply and discharge passages forthe flow to and from the boiler of the liquid to be treated, a valve to controlone of said passages, a movable member coacting with said valve, and a pressure feeler containing fluid communicating with a chamber adjacent said member, said ieeler being connected with the 'boiler to have the fluid in the feeler in thermal relation to the liquid in the boiler.

2. The combination of a boiler having supply and discharge passages for the flow to and from the boiler of the liquid tobe treated, a valve to control one of said passages, a movable member coacting with said valve, and a pressure feeler communicating with a chamber adjacent said member and projecting into the boiler'in contact with the liquid heated therein.

3. Thecombination of a boiler having supply and discharge passages for the fiow to and from the boiler of the liquidto be treated, a valve. to control one of said passages, means to normally maintain the valve upon .its seat, a. movable member to coact with the valve provided with a closed chamber opposed to the valveseating means, and a pressure feeler containing fluid extending boiler.

4. The combination of a heat exchange having supply and discharge passages, a

.into theboiler below the liquid level therein in thermal relation to the liquid in the,

boiler connected with said passages to re-.

ceive and discharge liquid therethrough, a valve to control one of said passages, and

a pressure feeler containing fluid in thermal relation to the liquid heated in the boiler for controlling the How of said liquid through the heat exchange and the boiler by the temperature of the liquid heated in the boiler.

5. The combination of a heat exchange having supply and discharge passages, a boiler connectedwith said passages to receive liquid from and discharge it through said heat exchange, a valve to control the flow of said liquid to and from saidboiler through said heat exchange, and pressure producing means for controlling said valve by the temperature of the liquid heated in the boiler.

6. The" combination of a heat exchange having supply and discharge passages, a-

boilerconnected with said passages to receive liquid from and discharge it throughsaid heat exchange, a valve to control the flow of said liquid through one of said passages, and thermally governed pressure producing means associated with the boiler for controlling said valve.

7. The combination of a heat exchange having supply and discharge passages, a

.boiler connected with said passages, a valve 

